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Topic: Irig

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	IRIG 106
		IRIG 106 is a comprehensive telemetry standard to ensure interoperability in aeronautical telemetry application at RCC member ranges.
		IRIG 106 is developed and maintained by the Telemetry Group of the Range Commanders Council.
		The purpose of this method is to allow individual seperate data channels to transmit their data to a receiver, and have the receiver reconstruct the multiple data sources and multiple packets into a valid IRIG 106 Ch 10 data stream.
	www.irig106.org (565 words)

	Irig - Wikipedia, the free encyclopedia
		Irig (Ириг) is a town and municipality in the Srem District of Vojvodina, Serbia.
		In Serbian, the town is known as Irig or Ириг, in Croatian as Irig, in Hungarian as Ireg, and in German as Irick.
		Since 1699, Irig was part of the Habsburg Monarchy, and since 1918, it was part of the Kingdom of Serbs, Croats and Slovenes (later renamed to Yugoslavia).
	en.wikipedia.org /wiki/Irig (382 words)

	Heim Data Systems
		That is all changing with the adoption of IRIG 106 Chapter 10, the Digital On-Board Recorder Standard, the culmination of several years’ cooperative effort by the Range Commanders Council, manufacturers and users.
		IRIG 106 Chapter 10 defines the time source and a method of time, tagging the data that allows high accuracy in both absolute time and in relative time between signal channels.
		The new IRIG 106 Chapter 10 standard is accelerating the migration to digital recording, as users recognize the benefits of digital technology.
	www.heimdata.com /press/irig_rb.htm (1418 words)

	IRIG Support Using Sun SPARC Audio
		At the on-time epoch a timestamp is captured from the kernel clock and adjusted for the phase of the IRIG carrier signal relative to the 8-kHz codec sample clock.
		Some IRIG timecode generators can indicate whether or not the generator is operating correctly or synchronized to its source of standard time using a designated field in the raw binary timecode.
		This causes the IRIG code to be included in the BSD driver, as well as a C-coded codec interrupt routine which replaces the assembly-coded routine and provides the IRIG functionality.
	www.umich.edu /~rsug/blackops/covert/ntp/irig.html (2105 words)

	LuxLink IRIG Fiber Optic Transmission Systems
		All IRIG time codes form 10 Hz to 500 KHz are accommodated.
		This unit is used to implement a redundant, fail-safe IRIG system by providing a common output from one of two separate IRIG inputs.
		IRIG GPS Master Clocks IRIG Clock Source based on GPS signals.
	luxlink.com /products/irig.htm (382 words)

	IRIG - Symmetricom
		The need for IRIG standards is that standardization of time codes allows equipment to be synchronized to a known reference time.
		The IRIG standard consists of a family of rate scaled serial time codes with formats containing up to three coded expressions or words.
		The most common version of IRIG is IRIG-B. The IRIG-B pulse code contains one "frame" of 100 "elements" per second for the time of the year and GPS receiver status.
	www.symmttm.com /irig.html (272 words)

	IRIG Audio Decoder II for Sun SPARCstation
		The driver determines which IRIG format is in use by sampling the amplitude of each filter output and selecting the one with maximum signal.
		Where feasible, the IRIG signal source should be operated with signature control so that, if the signal is lost or mutilated, the source produces an unmodulated signal, rather than possibly random digits.
		This is followed by the IRIG status indicator, year of century, day of year and time of day.
	tycho.usno.navy.mil /NTP/Version4/driver6.htm (1449 words)

	VTS Heartbeat, IRIG Standard, 1553 - L-3 Communications
		System or IRIG time is embedded in each data block for direct file access to specific data for playback.
		VTS decommutators are highly configurable to handle special requirements beyond standard IRIG formats (e.g., being able to support variable frame lengths found in “Burst Mode” or “Pass All Mode” to capture encrypted data and to then encode the data later for decryption before commutation).
		Architected for flexibility, these decoms are capable of total hardware decommutation for very large frames, up to 128K words or more, with data frames sorted by parameter for display and archiving efficiency or by tag-data format for applications requiring data before receipt of an entire frame.
	www.l-3com.com /tw/telemetry_west/products/vtsheartbeat.htm (1024 words)

	Evertz - HD9010TM-IRIG - HDTV Time Code Master with IRIG Reader
		This IRIG information is inserted into a special ancillary data packet in the vertical ancillary data space (VANC) of the SMPTE 292M serial bitstream.
		The millisecond count will be converted to the closest frame number and can also be stored in the generator user bits along with the IRIG day of the year.
		When the IRIG or VANC readers are operating in the IRIG DAY mode, there are two independently positionable windows for each reader to show the IRIG time to millisecond precision and the IRIG day respectively.
	www.evertz.com /products/HD9010TM-IRIG.php (776 words)

	CCT Products - Whats New In CCTK 21
		The synchronous serial interface supports acquisition and simulation of IRIG 161 compliant data streams, and since it is integrated with the CCTK middleware, it comes with a robust suite of processing, visualization, recording, and re-distribution services.
		The IRIG 161 synchronous serial interface is implemented based on a 4 channel serial controller UPCI board.
		The IRIG 161 interface was created using a new software auto-generation technology CCT is developing with cooperation and funding from the Air Force and NASA called "Auto-generated Semantic Processing Services" or AGSP.
	www.cctcorp.com /irig161.htm (364 words)

	IRIG Time Code Standards, Inter-Range Instrumentation Group (Site not responding. Last check: 2007-10-10)
		Developed by the Inter-Range Instrumentation Group (IRIG), which is part of Range Commanders Council (RCC).
		The IRIG interface is found on many types cards and chassis as a external coax input on a
		The IRIG 106 standard was listed on the web site, but removed because of bandwidth issues.
	www.interfacebus.com /Design_Connector_IRIG.html (322 words)

	IRIG-B - Symmetricom
		IRIG-B is the most common version of IRIG (Inter Range Instrumentation Group).
		The need for IRIG standards such as IRIG-B is that standardization of time codes allows equipment to be synchronized to a known reference time.
		In practice, many labs are equipped with devices that create IRIG time code from GPS Satellite time and distribute time code to other devices for synchronization.
	symmttm.com /irig-b.html (187 words)

	IRIG
		The use of the IRIG standard is to provide a standard protocol for serial time codes that are generated for correlation of data with time.
		IRIG Standard 200-04 (added year information to format).
		This a timing signal that has a rate of 100 pulse per second signal, There are other rate that are designated in accordance with the IRIG Standard 200-04 (see below).
	luxlink.com /faq/IRIG-B.htm (207 words)

	Evertz - 8010TM-IRIG - SDI Time Code Master with IRIG Reader
		This IRIG information is inserted into a special line of vertical interval time code which is protected by a unique cyclic redundancy checkword (CRC) so that tape recoders and other devices do not confuse it with standard SMPTE 12M D-VITC.
		The generator may also be momentarily synchronized to the reader, and then it continues to increment normally regardless of the reader code.
		When the IRIG or VITC readers are operating in the IRIG DAY mode, there are two independently positionable windows for each reader to show the IRIG time to millisecond precision and the IRIG day respectively.
	www.evertz.com /products/8010TM-IRIG.php (853 words)

	IRIG and 1PPS synchronization (Site not responding. Last check: 2007-10-10)
		The IRIG and 1PPS signals are generated in the timing center by a Trak Systems clock driven by the maser.
		The IRIG time code is synchronized to the 1PPS by the Trak clock.
		The software driving this card is slated for upgrades; with the current software, if the IRIG signal goes berserk (which happens if the signal from the timing center jumps, for whatever reason), the system time happily follows along.
	www.gb.nrao.edu /GBT/MC/doc/jford98/node19.html (406 words)

	The History of IRIG Time Codes
		Originally, the Inter-Range Instrumentation Group (IRIG) proposed a series of time code formats which later became the NASA codes.
		Soon after these, another series called the IRIG Standard Time Code Formats was approved and has become the industry standard.
		The codes, which have names like IRIG-A, IRIG-B, and so on through IRIG-H, differ in the frequency of the amplitude modulated carrier, which ranges from 100 Hz to 100 KHz, and the resolution of the time which may be encoded.
	www.endruntechnologies.com /timecodes.htm (398 words)

	Meinberg Radio Clocks - Support and abstract information for GPS, DCF77, NTP, IRIG
		Meinberg Radio Clocks - Support and abstract information for GPS, DCF77, NTP, IRIG
		IRIG Time Code Receiver and Generator for Computers (PCI/PCI-X bus)
		Grandmaster Clock and NTP Time Server with integrated GPS radio clock
	www.meinberg.de /english/support (54 words)

	Inter-range instrumentation group time codes - Wikipedia, the free encyclopedia
		The original formats were described in IRIG Document 104-60, which was later revised and reissued in August 1970 as IRIG Document 104-70, leading to an upgrade later that year of the IRIG Document to the status of a Standard, IRIG Standard 200-70.
		The most commonly used of the standards is IRIG B, then IRIG A, then probably IRIG G. Time code formats directly derived from IRIG H are used by NIST radio stations WWV, WWVH and WWVB.
		The time frame for the IRIG B standard is 1 second, meaning that one data frame of time information is transmitted every second.
	en.wikipedia.org /wiki/Inter-range_instrumentation_group_time_codes (438 words)

	IRIG Audio Decoder
		The crafty IRIG driver uses a transverse filter to remove the modulation and something called a botttom-fisher to remove incidental positive spikes especially prevalent with Sun Blade 1000 and possibly other systems.
		This is usually the result of an overdriven codec, wrong signal format or noisy IRIG signal.
		It may also be the result of an IRIG signature check which indicates a failure of the IRIG signal synchronization source.
	www.eecis.udel.edu /~mills/ntp/html/drivers/driver6.html (1816 words)

	IRIG Reader for V1 video disk recorder (Site not responding. Last check: 2007-10-10)
		Burbank, CA - November 26, 2003 - IRIG-A and IRIG-B serial time code reader is now available as an option for Doremi's V1 disk recorder family.
		The IRIG serial time code format is used by US Government facilities to ensure system compatibility among the various ranges and ground tracking networks for spacecraft and missile projects.
		The IRIG serial time code can then be read via the V1's Sony 9pin connector.
	www.doremilabs.com /news/Press/Irig_reader.htm (260 words)

	Accubeat
		IRIG Codes are named IRIG A, IRIG B, and so on through IRIG H. The codes differ in the frequency of the amplitude-modulated carrier, which ranges from 100 Hz to 100 KHz, and in the resolution of the time, which may be encoded.
		Time codes may be used either as DC level shifts suitable for direct connection into digital systems or as amplitude-modulated audio tones suitable for recording on to magnetic tape or for transmission over some other band limited medium.
		IRIG serial time code formats are defined by IRIG STANDARD 200-95.For more information on this subject see
	www.accubeat.com /GPSRb_tech.asp (606 words)

	System Time Update using IRIG - 4
		since the "IRIG present" is merely a flag in the sixth group (status) and
		(IRIG B pulse code consist of one frame with 100 elements.and it all comes
		If you're interested, I have some docs outlining the detail of IRIG packets.
	www.thescripts.com /forum/post60149-4.html (223 words)

	IRIG A/B decoder instrumentation
		The IRIG board incorporates a microprocessor that controls all timing operations and a unique automatic threshold adjustment circuit.
		If the IRIG input signal falters, the board will automatically switch all timing to the back-up timer with no loss in time.
		A phase-locked loop frequency divider is utilized to synchronize internal time registers to the IRIG B input signal.
	www.ailtso.com /irig_AB_decoder_instrumentation.htm (265 words)

	II (IRIG IN) (Site not responding. Last check: 2007-10-10)
		It can be manually set or set automatically from an incoming IRIG time code signal.
		To eliminate glitches, extensive data validation is performed before slaving the Clock to the incoming IRIG signal.
		The incoming IRIG signal does not have Year nor Month data and the Days are in a Julian format.
	www.ridgecrest.ca.us /~fhansen/HEInc02/d_II.html (183 words)

	IRIG Audio Decoder (Site not responding. Last check: 2007-10-10)
		This signal is generated by several radio clocks, including those made by Austron, TrueTime, Odetics and Spectracom, among others, although it is generally an add-on option.
		The signal is connected via an attenuator box and cable to the audio codec input on a Sun SPARCstation and requires a specially modified kernel audio driver described in the IRIG Support Using Sun SPARC Audio page.
		Where feasible, the interface should be operated with signature control, so that, if the IRIG signal is lost or malformed, the interface produces an unmodulated signal, rather than possibly random digits.
	www.csupomona.edu /reference/misc/xntpd/driver6.html (527 words)

	IRIG - University of Louisville
		Investigators who have received prior funding from IRIG must submit a report on their prior grants in order to be eligible for additional funding.
		Grants from these intramural funding programs may not be used to fund travel to professional meetings, symposia, workshops, etc., and any deviations from the proposal budget must have the prior approval of the Office of the Senior Vice President for Research.
		Questions about the nature of the URS grants should be directed to
	research.louisville.edu /irig-2.htm (984 words)

	IRIG-B Modulator (Site not responding. Last check: 2007-10-10)
		Rather than just taking the 1PPS from a GPS receiver, users are now able to access an IRIG-B time source while, at the same time, getting state-of-the-art positioning and velocity measurement at up to 20 Hz update rate.
		IRIG Standard 200-95 B120 format is a 1kHz amplitude modulated carrier with the time frame rate 1Hz and signal bit rate 100 bits per second.
		Preset in range from 100 mV to 2.8 V with +5 mV of accuracy.
	www.javad.com /jns/products/IRIG-B.html (160 words)

	IRIG and GPS Timing Applications for Embedded Systems
		A user-friendly device driver controls KSI's GPS and IRIG time-code generators and readers.
		The device driver allows easy integration of the KSI IRIG or GPS timing board of the user's choice.
		Reproduction in whole or in part in any form or medium without express written permission of LynuxWorks is prohibited.
	www.lynuxworks.com /board-support/ksi.php (112 words)

	Edwards Air Force Base - Test Instrumentation - Equipment Examples - Airborne Systems - Miniature Advanced Airborne ... (Site not responding. Last check: 2007-10-10)
		The unit outputs IRIG A, B and G time in both direct current and modulated codes.
		Provides two IRIG A direct current, and two IRIG A modulated outputs.
		Can synchronize to externally supplied IRIG source: A, B or G direct current code or IRIG B modulated.
	www.edwards.af.mil /ti/equipmt/ab_sys/mini_tcg.html (205 words)

	NTP Time Server
		Our ready-to-run time server appliances named LANTIME are a perfect solution if you do not want to build your own time server.
		You can choose between several different external sources of time: GPS (globally available), DCF77 (Central Europe) or IRIG.
		Even if your desired installation location does not allow to receive external signals, our free running clocks can be deployed to keep your network in sync.
	www.meinberg.de /english/products/time-server.htm (871 words)

	Meinberg Radio clocks - Our Product Range - by Application
		TCR167PCI: IRIG Time Code Receiver and Generator for Computers (PCI/PCI-X bus)
		COM52HS: DCF77 radio clock for 35mm DIN mounting rail.
		SDU: Signal Distribution Unit for PPS, 10MHz and IRIG Signals
	www.meinberg.de /english/products (616 words)

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